<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css"> <script src="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script> <script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script> <!------ Include the above in your HEAD tag ----------> Ensure email security with the free <a href="https://www.phone.email/>"<b>email OTP verification</b></a> Service at Phone.Email. This reliable and easy-to-use email OTP verification service authenticates email IDs quickly and efficiently. Protect accounts and enjoy peace of mind with this trusted OTP verification solution.